Try these for starters:
XJ412 - left on the top of Tinkers Hill Sabah in Nov 66 - no code
XJ432 - no code
XP329 - 'C'
XK986 - 'U'
By the way guys, the Borneo Boys book is launched at the RAF Museum on 12 December. It tells the story of helicopters in Borneo 1962-66, mainly RAF.
Old Duffer